Ars Technica:
If you’ve ever used a cellphone, hearing aid, or baby monitor, listened to live or recorded music, or recorded anything yourself, you’re indebted to James West.
West is the co-inventor of the electret microphone used in all of those devices and more. It’s estimated that over 90 percent of the microphones in use today are electret mics, and more than 2 billion of these devices are produced worldwide every year.
I’ve never heard of an electret microphone but this is a fascinating story.
I remember seeing the term in electronics catalogs, probably as far back as when Radio Shack’s was interesting to browse.
Shawn, an electret mic is one of the most common mic types. Think of it as a passive condenser mic.
I think that pretty much every phone you use—at least the home phones we all used to have, use electret microphones. BTW, I knew Jim from the days I worked at BL, just down the hall from him—aside from being brilliant, he’s a really nice guy!
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